Car-door.



E.. CRONEMLLER.

CAR DOOR.

APPLICATION FILED MAY 2, 1910.

Patented May 30, 1911.

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F, CRONEMILLER.

CAR DOOR.

APPLICATION FILED MM2, 1910.

Patented May 30, 1911.

3 SHEBTSSHBET Z.

Frn/emiller;

F. CRONEMILLER,

GAR DOOR.

APPLICATION FILED MAY 2, 1910.

Patented May m WM.

3 SHEETBSHBET 3.

FREDERECK CRONEMILLER, 0F SUPERIOR, WISCONSIN.

' CARDOOR.

Specification of Letters Patent.

kitentcd May 30, 1911.

Application filed May 2, 1910. Serial No. 558,875.

, To all whom it may concern:

Be it known that l, Fnnnnnioir Caronn- 'Mrminm a citizen of the United States, re-

' well as regular `grain' cars, and which will a effectively prevent the loss of `grain or similar commodities.

Another object of the invention is to provide a 2grain door which is constructed of steel or other metal and adapted to be folded horizontally.

Further objects of the Vinvention are to provide improved means tor mounting, guiding, elevating and supporting the door.

lith the above and other objects `in view, the .invention consists of. the novel construetion, combination and arrangement of parts, hereinafter' fully described and claimed, and 'illustrated in the accompanyin,gg` drawin in which :m

Figure l is an outside View of a portion of a cor equipped with my improved door, the latter being in closed position; F 2 is a View looking at the inner side of the door; F ig. 3 is a view similar to Fig. l but showing the door in partly elevated and folded position; Fig. l is a vertical section taken' on the plane indicated by the line 4-4 in Fig. l; Fig. 5 is a detail section taken on the plane indicated by the line 5-5 in, Fin. 3 and showingin dotted lines the door in -it'seXtrenie elevated and folded position;

Fig. 6 is e horizontal section taken on the plane indicated by the line 66 in Fig. l; Fig. 7 is a detail View of the folding hanger or post; Fig. 8 is a` detail view of one of the door guiding;I members or plates which are arranged on the side of the door opening; Fig. 9 is a detail view of one of the supporting members or plates for holding the door in its elevated and folded position beneath the roof of the car; and Fig. l0 is e detail.viemillustrating the means for fastening; the swinging supports which bold the folded door in elevated position.

Referring more particularly to the drawings l denotes a portion of a railway car or any other structure in which my improved door is used; and E2., 3, el, denote the three sections of my improved door, which latter may be constructed of a `greater or less numbei' of sections which are hingedly united along their longitudinal edges so as to fold over upon inch other and which are. mounted on a swinging suspending device and adapt.- ed to have their end edges engage suitable tguiding` and retaining' members on thc sides of the door opening. The three door sections are constructed of sheet steel or other metal and the lower and upper sections 2, el, are united to the longitudinal edges of the internu'idiate section 3 by means of hinges 5, which latter permit the lower scetion 2 to swing upwardly and inwardly7 and the upper section -1 to swine' downwardly and inwardly as indicated in Fig, 5.

The hanger or post which suspends the door from the upper portion of the ear consists of a` main upper .section G and a folding' lower section 7, the latter being pivoted between spaced ears S on the lower end of the upper section o so that it can swine' upwardly and inwardly but will be prevented, from suvingring outwardly beyond the longitudinal axisof said section (l. The lower extremity ot the folding' section 7 has a. reduced portion or tenen Sl to enter a socketl0` formed in a metallic threshold or sill plate ll which is secured in the bottom of the door opening and has a longitudinal Igroove or channel l2 for the reception of the bottom edge of the lower section 2 of the door. The upper or main section 6 of the hanger has spaced ears 13 which are pivoted between angle brackets 14 secured to a inetallic reinforcing plate 15 which is in turn secured on the inner face of the wall of the car above the center of the door opening, as will be seen on reference to Fig. 2. This pivotal mounting of the hanger enables it to swing downwardly to a perpendicular position' or upwardly to a substantially horizontal position, in which 'latter position the folded door sections are disposed close to the roof of the our, as indicated in dotted lines in Fig. 5.

The several door sections 2, 3,4,are adapted to move longitudinally of the main section 6 of the hanger or post, und to support and guide them I preferably provide on the thereof of the car, whereby the parts of the foldedldooriyill be.more effectively supported. f

1n operation, assuming the door to be in its closedposition as shown in Fig. 1,' when it is desired to remove the grain or `other contents of the car the small door -37 is first opened to permit of the discharge of sulficient .grain to relieve the pressure against the sections 2, 3, 4,"of the door. After this has been done the lockingpawls or dogs 32 are disengagedA from the ribs 28, and the hand lever 24 is then oscillated to rotate the windlass 18 to rwind the cables 19 thereon, and thereby simultaneouslyvmove the three 'sections o'f the door vertically on the hanger or post. As the door is thus moved upl l wardly the guide straps or cleats 31 diseiigage the ribs. 28 so that the upperisection 4 ovthe doorcan swing downwar ly and after the door has been raised to-a predetermined height the bottom edge of the lower section, 2 clears the upper ends4 of` the channeled 'guide flanges 27 of the plates 2G so that said section 2 may swing upwardly and inwardly.

The door section 2 is firstswung upwardly and the' section 4 is then swung ownwardly so that the sections will overlap and- `retain inwardly each other in folded osition, the upper scction 4 bein prefcrab y larger and of greater weight. en the parts are in the position last ymentioned lthe lower section4 7 of the hanger is disenga ed from the socket or seat 10 in the threshol plate and then folded npwardly and engaged with the hook 48, and the hanger 6 is then swungupwa'rdly :in d

tion, and the hook 50 at the top of the car is engaged with the opening Llf) in the section 6 of the post. The supporting members 4,0 are then swung upwardly to engage the endsl i of the folded door sections and are ,fastened bv the catches 47 whereby all parts of the folded door will be effectively retained in elevated position adjacent tothe roof ot the car. By reversing the operation just described 'the door .may be lowered and secured in its closed position.

While the preferredgc,ibodirnents of the invention have been slio` and described in detail, it will be understood thatv I do not wish to be limited to the precise construction set forth, since various changes in the forni,

- roportion and arrangement of parts, and

1n the details of construction may be resorted to within the spirit and scope ot the invention. l

Having thus described the invention, what is claimed is:

l. 4.ln combination with a structure of the class described, having a door opening, a hanger bar pivotally suspended at its upper end, from the structure and comprising an upper section and a lower section, the latter beingf pivotcd to the upper section -and so to a substantially horizontal posi-A engaged at its lower end as to prevent lateral movement thereof, and a door comprising an upper section and lower section pivotally connected together, and foldable one against another, the upper section of the door being slidably mounted on the upper section of the hanger y 2. In combination with a structure of the class described having a door opening, a

hanger bar pivotally suspended at its upper end from the structure, and comprising an upper section and a. lower section, the latter being pivoted to the upper section and so engaged at its lower end as to lprevent lateral movement thereof, and a door comprising an upper section and lower sections pivotally connected together, and t'oldable one against another, the upper section of the door being slidably mounted on the upper section of the hanger, and means on the upper section of the hanger and connected to the door to raise and lower the latter;

3. In combination with a structure o'the class described, having a door opening. a hanger bar comprising an upper sect-ion and alower section pii-'otally connected thereto,

to the structure, at a point opposite said opening to swing inwardly. and the lower hanger bar section being foldableagainst the outer side of the upper section, means to secure thenlower end of the lower hanger bar section whn the hanger bar is in vertical position, a door comprising an upper section and lower sections, said dooi sections being pivotally connected together and foldable one against. another, the said upper door section being' slidably mounted on the upper lsection of the hanger bar, means to raise and lower the door, on the hanger bar, means at.v

the sides of the door opening to secure the door, when in lowered position, outwardly swinging supportingl members in the structure above the door opening, lo engage the door when the latter is swung together with the hanger bar inwardly in the structure, and means to secure said swinging -supports when thus engaged with the dooi' to cause said supports to hold the door and the, hanger in elevated position, swung 'in- ,waldly.

4. The combination of a structure. having a door opening, a hanger pivotally snspendcd from the structure, and composed ot two sections, one being movable with respect. to each other, a door upon the hanger. a keeper at the bottom of the door opening, to receive the movable section of the hanger, and means at the sides of the door openingr to engage the door.

5. The combination of a structure having a door opening, a hanger pivot-ally suspended from the structure, a door carried by the hanger, a keeper at the bottoni of the door opening, a folding section pivoted to the the upper section being 'pivotally connected ilo hanger and adapted te engage said keeper,

and means at the sides ofthe door opening door section being adapted-to engage said channeled flanges, and guidecleats upon the main and upper door sections to engage said ribs.

7. The combination ofra'str'ucture having a. door opening, plates secured to the opposite sides of the door o ening andhaving at their lower portions c annele'd flanges, and

on their opposing inner edges, guide ribs, the latter having notches a hanger pivotally mounted on the structure atr the top of the door opening, 'a'door having a main section slidably engaged with the hanger, and upper and lower folding sections hinged to the longitudinal ed'ges 'of each other and -the 4main section, the lower door section being.

adapted toengage said channeledv fianges, gui means on the main and upper door sections to engage said ribs. locking dogs carried by'one of the door sections, to engage the notches in said ribs, and means en rried by the hanger for shifting the main door section upon it.

8. The combination of a structure having a door opening, plates secured to the .oppo. site sides of the door o enin and having at their lower portions 'c ienne ed anges and on their opposing inner edges ide ribs, u. hanger pivotally mounted on t e structure at the top of the door opening,'a` door hav;

ing a main section slidably engaged with the hanger, and upper and lower folding sections hinged to the longitudinal edges 'of each other and the main section, the lower door section being adapted .to engage said channeled flanges, gui e cleats. upon the Y main and upper door sections to engage said ribs, and means carried by the hanger for shifting the main door section upon 1t.-

` 9. The combination of a`door composed of sections disposed horizontallyy and hin edly connected to fold up'on eachother an upwardlyand into a car, outwardly swinging supporting members in the top of the can' to engage the ends of the foldedi'door sections, and catches for securing said swinging supports. i

10. The combination of a door mounted to swin upwardly and into apar, an' outf war y swinging support mounted in the top ofthe car toengage and support the folded door and alcatch forrsaid swinging support.

In testimony whereof I hereunto air signature in the presence of two witnesses.

"-\ REDERICK CRQNEMHLER.

Witnesses:

BLANCHE A; Larrrrrn, HERMAN E. Lern'rra. 

